JP3236924B2 - Body fluid absorption material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bodily fluid absorbing patch which is laid on the inner surface of underwear such as panties to absorb bodily fluids such as vagina.

[0002]

2. Description of the Related Art Conventionally, this type of body fluid absorbing patch has
What is called a so-called cage sheet is commercially available. The vaginal discharge sheet is intended to absorb dirt placed on the inner surface of the undergarment other than the period of menstruation to prevent dirt on the undergarment. However, this voucher sheet merely prevents soiling of the underwear and has no other function.

[0003] By the way, the pH of the vaginal discharge depends on the physiological cycle,
It varies depending on pathological conditions such as Trichomonas, menopause, rupture of water at the time of pregnancy, etc., so that the health condition, physical condition, etc. can be checked by measuring the pH of the vaginal discharge. Also,
When a doctor examines a patient's morbidity, the pH of the vaginal discharge may be measured.In such a case, the doctor collects the vaginal discharge with a cotton swab or the like and measures it by contacting it with a pH test paper. .

[0004]

However, it is very troublesome to measure the pH of a bodily fluid such as a vaginal discharge from an ordinary day, and the pH value is measured as a barometer for easily checking the health condition and physical condition. There were still many challenges to do.

[0005] In addition, when a doctor measures the pH of a patient's body fluid, there is also a problem that an internal examination is required at the time of collection and the like, and the measurement is difficult.

Accordingly, the present invention is to solve the above problem by providing a body fluid absorbing patch having a function of measuring the pH of a body fluid such as a vaginal discharge.

[0007]

For this reason, the body fluid absorbing patch of the present invention has a body 2 to which a dye 2 that changes color depending on pH is adhered. Preferably, a pigment 2 that changes color due to pH is made into ink and attached to the main body 1.

Further, the body fluid absorbing patch according to the present invention comprises:
The main body 1 is composed of at least a surface material 1a, an absorber 1b, and a waterproof layer 1c. The surface material 1a is made of a transparent material, and a pigment 2 that changes color due to pH is attached to the surface of the absorber 1b. It may be a thing.

In the body fluid absorbing patch according to the present invention, the main body 1 comprises at least a surface material 1a, an absorber 1b, and a waterproof layer 1c. A pigment 2 that changes color depending on pH can be attached to the back surface of the body 1b or the inner surface of the waterproof layer 1c.

Furthermore, the body fluid absorbing patch of the present invention is obtained by applying or printing a dye 2 that changes color due to pH to the main body 1 and then applying or printing a cationic coating agent. Is also good.

In addition, the body fluid absorbing patch of the present invention comprises:
The dye 2 is preferably nitrazine yellow.
The dye 2 of nitrazine yellow may be applied or printed in a state of being prepared to be weakly acidic.

[0012]

Since the body fluid absorbing patch of the present invention has the above-described structure, when the pigment 2 which changes its color due to pH is wetted by a bodily fluid such as a vaginal discharge, it reacts and changes its color. The discoloration state of the pigment 2 can be seen from the front surface or the back surface of the body fluid absorbing patch.

Further, if the portion where the dye 2 is adhered is the absorber 1b or the waterproof layer 1c, the dye 2 does not directly hit the user's skin during use.

Further, if the dye 2 is formed into an ink and applied or printed, and then a cationic coating agent is applied or printed, it is possible to effectively prevent the dye from dropping from the coated or printed surface.

Further, a dye 2 that changes color by pH
Is nitrazine yellow, the color changes to yellow, yellow-green, or blue depending on the pH of the body fluid.

Furthermore, if nitrazine yellow is prepared to be weakly acidic, it will be applied or printed in a state of discoloration to yellow. Is abnormal, the color changes from yellow to blue.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of a body fluid absorbing patch according to the present invention will be described below in detail with reference to the drawings shown as an embodiment.

As shown in FIGS. 1 and 2, the body fluid absorbing patch according to the present invention comprises a surface material 1a, an absorber 1b, and a waterproof layer 1.
The main body 1 is constituted by c, and an appropriate packaging material (not shown)
Packaged by In this embodiment, the surface material 1a is made of a synthetic fiber nonwoven fabric, the absorber 1b is made of a natural fiber nonwoven fabric, and the waterproof layer 1c is made of a polyethylene backsheet. However, an appropriate material is selected as necessary. The thing shown in FIG. 3 is that the surface material 1a and the absorber 1b are bonded and mesh-processed, and the absorber 1d made of a synthetic fiber nonwoven fabric is provided between the absorber 1b and the waterproof layer 1c. I have.

On the surface of the absorber 1b of the main body 1, a dye 2 that changes color depending on pH is adhered. In order to attach the dye 2, it is preferable to make the dye 2 into an ink and attach it.

When the surface material 1a is made of a transparent material such as a mesh sheet, the portion where the dye 2 is adhered can be the surface of the absorber 1b or the outer or inner surface of the surface material 1a. When the waterproof layer 1c is made of a transparent or translucent transparent material, it can be the back surface of the absorber 1b or the inner surface of the waterproof layer 1c.

Further, the dye 2 used in the body fluid absorbing patch of the present invention is one that changes color in the pH range of 4-5, 5-6. Generally, this is often pathological when the pH of the vaginal discharge is 5 or more, and the p.
When H is 5 or less, it is often normal, so it is preferable to use Dye 2 which changes color in the above pH range. Further, the pH becomes 5 or more even when water is broken in a person with urinary incontinence or a pregnant woman. Therefore, in such a case, it is preferable to use the dye 2. In Examples, as such a dye 2, nitrazine yellow [alias;
2- (2,4-dinitrophenylazo) -1-naphthol-3,6-disulfonate].

[0022]

Embedded image

The nitrazine yellow discolors yellow at pH 4, yellow-green at pH 5, and blue at pH 6, and is extremely excellent in safety to the human body.

In order to convert the dye 2 into an ink, the dye 2 is adsorbed on hydrogel particles having a cationic group, and if necessary, a composition having a structure in which the surface is covered with a moisture-permeable or water-permeable film is used. Good. An appropriate binder for fixing the composition to the body fluid absorbing patch may be used in combination with the composition. The hydrogel particles include acrylic acid.
It is preferable to use a composition typified by a partially crosslinked product of acrylamide / methacrylic acid / N, N-dimethylaminoethyl copolymer with glycerol glycidyl ether, and to have a particle diameter of 0.01 to 50 μm.

By coating or printing the dyed ink 2, bleeding (phenomena of dye bleeding) does not occur even when the dye 2 is wetted by a bodily fluid such as vaginal discharge, and the dye 2 is excellent in durability. It can be attached to the main body 1 in a state of being left. The dye 2 may be applied or printed, and then a cationic coating agent may be applied or printed. In this case, it is possible to effectively prevent the dye from dropping from the coated or printed surface.

Further, when the dye 2 is nitrazine yellow, as shown in Tables 1 and 2, compared with other dyes, for example, methyl red, bromothymol blue and bromocresol green, the pH of the dye 2 is 4%. In addition to vivid discoloration in the range of ~ 6, it becomes difficult to change over time under heating and humidification (40 ° C, 75%) and under light exposure.

[0027]

[Table 1]

[0028]

[Table 2]

If nitrazine yellow is made into an ink and adjusted to be neutral, it will be coated or printed in a blue state. If nitrazine yellow is made into an ink and adjusted to be weakly acidic, It will be applied or printed in a yellow state.

For this reason, when nitrazine yellow is formed into an ink and applied or printed in a blue state, the color of the container changes from blue to yellow when the container is normal, but remains blue when the container is abnormal. Does not discolor. In the case where nitrazine yellow is formed into an ink and applied or printed in a yellow state, the color of the vagina is normal and the color is not changed, and the color of the vagina is changed from yellow to blue when the vagina is abnormal.

Therefore, although the former is actually normal, the blue color may not be changed when there is no or little veneer, so it may be mistaken as abnormal. However, the latter is yellow in normal cases,
Even if the discoloration does not occur when there is no or little veneer, it will not be mistaken as abnormal.

[0032]

The patch for absorbing body fluid according to the present invention is constructed as described above. When the pigment 2 which changes its color due to pH is wetted by a bodily fluid such as a vaginal discharge, the discoloration takes place. Since it can be seen from the front or back of the dressing material, it can be used as a barometer for easily checking health condition, physical condition, etc. When the body fluid absorbing patch of the present invention is used, even when a doctor measures the pH of a vaginal discharge of a patient, an internal examination is not required at the time of collection and the measurement is not accompanied by difficulty.

Further, if the portion to which the dye 2 is adhered is the absorber 1b or the waterproof layer 1c, the dye 2 does not directly hit the user's skin during use, so that a sense of security can be obtained. It became something that could be done.

Further, if a cationic coating agent is applied or printed after the dye 2 is applied or printed, it is possible to effectively prevent the dye from dropping off from the coated or printed surface, thereby improving safety. In terms of security.

Further, when the pigment 2 which changes color with pH is nitrazine yellow, the color changes to yellow, yellow-green or blue depending on the pH of the body fluid, so that the health condition, physical condition, etc. can be more clearly checked. It became so.

In addition, when nitrazine yellow is formed into an ink and applied or printed in a yellow state, it remains yellow, which indicates a normal state when there is no or little vaginal discharge. Will not
It becomes easy to check the health condition and physical condition.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view of an embodiment of a body fluid absorbing patch according to the present invention.

FIG. 2 is a sectional view of the body fluid absorbing patch of the present invention taken along line AA in FIG. 1;
It is an expanded sectional view by a line.

FIG. 3 is an enlarged sectional view of another embodiment of the body fluid absorbing patch according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body part 1a Surface material 1b Absorber 1c Waterproof layer 2 Dye

──────────────────────────────────────────────────続 き Continued on the front page (56) References JP-A-3-33604 (JP, U) JP-A-4-11020 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) A61F 13/15-13/84

Claims (7)

(57) [Claims] 1. A body fluid absorbing patch characterized in that a pigment (2) that changes color depending on pH is formed into an ink and applied or printed on a main body (1), and then a cationic coating agent is applied or printed. Wood. 2. The patch according to claim 1, wherein said dye (2) is nitrazine yellow. 3. A body fluid absorbing patch characterized in that nitrazine yellow is adhered to the main body (1) as a pigment (2) that changes color depending on pH. 4. A body fluid absorbing patch characterized in that nitrazine yellow as a dye (2) discolored by pH is made into an ink and adhered to the main body (1). 5. The main body (1) is provided with at least a surface material (1).
a), an absorber (1b), and a waterproof layer (1c), and the surface material (1a) is made of a transparent material,
Dye (2) discolored by pH on the surface of absorber (1b)
A body fluid absorbing patch characterized by having nitrazine yellow adhered thereon. 6. A body (1) having at least a surface material (1).
a), an absorber (1b), and a waterproof layer (1c), and the waterproof layer (1c) is made of a transparent material,
P on the back surface of the absorber (1b) or the inner surface of the waterproof layer (1c).
A patch for absorbing body fluid, wherein nitrazine yellow is attached as a dye (2) discolored by H. 7. The body fluid absorbing patch according to claim 2, wherein the dye (2) is applied or printed in a state of being prepared in a weakly acidic state.